Question 1

Which of the following methods can be used to prepare the following compound?

Accepted Answer

A) I 
B) II 
C) III 
D) II and III 
E) I, II, and III 
A) I 
B) II 
C) III 
D) II and III 
E) I, II, and III

Question 2

What is the carbon nucleophile which attacks molecular bromine in the acid-catalyzed   of a ketone?

Accepted Answer

A) an enolate 
B) a Grignard reagent 
C) an acetylide 
D) a carbocation 
E) an enol 
A) an enolate 
B) a Grignard reagent 
C) an acetylide 
D) a carbocation 
E) an enol

Question 3

Which of the labeled hydrogen atoms in the following structure is the most acidic?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 5 
A) 1 
B) 2 
C) 3 
D) 4 
E) 5

Question 4

Give the major product for the following reaction.

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 5

Give the major product for the reaction.

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 6

Give the major product for the following reaction.

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 7

Which of the following will alkylate a lithium enolate most rapidly?

Accepted Answer

A) methyl bromide 
B) isopropyl bromide 
C) neopentyl bromide 
D) bromobenzene 
E) 2-methylbromobenzene 
A) methyl bromide 
B) isopropyl bromide 
C) neopentyl bromide 
D) bromobenzene 
E) 2-methylbromobenzene

Question 8

What is the major organic product of the following reaction?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V

Question 9

What two starting materials yield OHCCH2CO2CH2CH3 as the mixed Claisen condensation product?

Accepted Answer

HCO₂CH₂CH₃ an

Question 10

Which compound's α H is the least acidic?

Accepted Answer

A) nitroethane 
B) propanenitrile 
C) N,N-dimethylacetamide 
D) propanal 
E) acetone 
A) nitroethane 
B) propanenitrile 
C) N,N-dimethylacetamide 
D) propanal 
E) acetone

Question 11

What iminium salt is produced in the reaction shown below?

Accepted Answer

The answer of What iminium salt is produced in the...

Question 12

Provide the major organic product(s)of the reaction shown below.

Accepted Answer

The answer of Provide the major organic product(s)of the reaction...

Question 13

Give the major product for the following reaction.

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 14

Give the major product for the following reaction.

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 15

Give the major product of the following reaction.

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 16

Provide the structure of the major organic product that results when 4-methylhexanal is heated in base and undergoes and aldol addition followed by a dehydration.

Accepted Answer

The answer of Provide the structure of the major organic...

Question 17

Use an asterisk to indicate the most electron-rich carbon in the molecule below.

Accepted Answer

The answer of Use an asterisk to indicate the most...

Question 18

What is the major organic product of the following reaction?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V

Question 19

Provide the major organic product(s)of the reaction shown below.

Accepted Answer

The answer of Provide the major organic product(s)of the reaction...

Question 20

Give the major product of the following reaction.

Accepted Answer

The answer of Give the major product of the following...

Exam 18: Reactions at the Alpha Carbon of Carbonyl Compounds

Which of the following methods can be used to prepare the following compound?

What is the carbon nucleophile which attacks molecular bromine in the acid-catalyzed of a ketone?

Which of the labeled hydrogen atoms in the following structure is the most acidic?

Give the major product for the following reaction.

Give the major product for the reaction.

Give the major product for the following reaction.

Which of the following will alkylate a lithium enolate most rapidly?

What is the major organic product of the following reaction?

What two starting materials yield OHCCH2CO2CH2CH3 as the mixed Claisen condensation product?

Which compound's α H is the least acidic?

What iminium salt is produced in the reaction shown below?

Provide the major organic product(s)of the reaction shown below.

Give the major product for the following reaction.

Give the major product for the following reaction.

Give the major product of the following reaction.

Provide the structure of the major organic product that results when 4-methylhexanal is heated in base and undergoes and aldol addition followed by a dehydration.

Use an asterisk to indicate the most electron-rich carbon in the molecule below.

What is the major organic product of the following reaction?

Provide the major organic product(s)of the reaction shown below.

Give the major product of the following reaction.

Remembering General Chemistry: Electronic Structure and Bonding

Acids and Bases: Central to Understanding Organic Chemistry

An Introduction to Organic Compounds

Isomers: the Arrangement of Atoms in Space

Alkenes Thermodynamics and Kinetics

Reactions of Alkenes

Reactions of Alkynes Introduction to Multistep Synthesis

Electron Delocalization, Resonance, and Aromaticity More About Molecular Orbital Theory

Substitution Reactions of Alkyl Halides

Elimination Reactions of Alkyl Halides Competition Between Substitution and Elimination

Reactions of Alcohols, Ethers, Epoxides, and Sulfur-Containing Compounds

Organometallic Compounds

Reactions of Alkanes, Radicals

Mass Spectrometry, Infrared Spectroscopy, and Uvvis Spectroscopy

Nmr Spectroscopy

Reactions of Carboxylic Acids and Carboxylic Acid Derivatives

Reactions of Aldehydes and Ketones

Reactions of Benzene and Substituted Benzenes

More About Amines Heterocylic Compounds

Carbohydrates

Amino Acids, Peptides, and Proteins

Catalysis

The Organic Mechanisms of the Coenzymes

The Chemistry of Metabolism

Nucleosides, Nucleotides, and Nucleic Acids

Synthetic Polymers

Pericyclic Reactions

Filters

What two starting materials yield OHCCH₂CO₂CH₂CH₃ as the mixed Claisen condensation product?